Enable docker container support in VSO integration tests (#590)

* Add container scripts for VSO builds

* Remove relative path from kubectl.exe

* Use a variable and iex for kubectl path

* Use envvar for working dir path

* Try agent directory

* Update kubeconfig path

* Write connection settings json in build script

* Output logging

* remove _work prefix

* End end point instead of service name

* Disable failing tests

* Change service name prefix so it's different than SSMS containers

scripts/CleanupKubernetesTarget.ps1

@@ -0,0 +1,9 @@
+Param (
+    $svcName = $env:k8ServiceName
+)
+$env:KUBECONFIG = $env:AGENT_WORKFOLDER + "\kubeconfig.centralus.json"
+
+$kube = $env:AGENT_WORKFOLDER + "\kubectl.exe"
+
+iex "$kube delete service $svcName"
+iex "$kube delete deployment $svcName"

scripts/PrepareKubernetesTarget.ps1

@@ -0,0 +1,39 @@
+$rnd = Get-Random -Minimum 1000000 -Maximum 9999999
+$svcName = "sqltoolsvc" + $rnd
+$pwd = "Yukon" + $rnd
+$env:KUBECONFIG = $env:AGENT_WORKFOLDER + "\kubeconfig.centralus.json"
+
+$kube = $env:AGENT_WORKFOLDER + "\kubectl.exe"
+
+iex "$kube run $svcName --image=sqltoolscontainers.azurecr.io/sql2017linux --port=1433 --env ACCEPT_EULA=Y --env SA_PASSWORD=$pwd"
+iex "$kube expose deployment $svcName --type=LoadBalancer"
+
+do
+{
+    $svc = iex "$kube describe service $svcName"
+    Write-Host "Service Configuration: $svc"
+    $endpoint = $svc -match "Endpoints:(.+):1433"
+    Write-Host "Endpoint: $endpoint"
+# the output of kubectl is an object array
+} while ($endpoint -eq $null -or $endpoint.Length -eq 0)
+
+$endpoint = $endpoint.Split(":")[1].Trim()
+Write-Host "##vso[task.setvariable variable=k8EndPoint;]"$endpoint
+Write-Host "##vso[task.setvariable variable=k8ServiceName;]"$svcName
+
+$settingsOutput = "{ `"mssql.connections`":[ "
+$settingsOutput = $settingsOutput + "{ `"server`":`"$endpoint`", "
+$settingsOutput = $settingsOutput +  "`"ServerType`":0, "
+$settingsOutput = $settingsOutput +  "`"AuthenticationType`":1, "
+$settingsOutput = $settingsOutput +  "`"User`":`"sa`", "
+$settingsOutput = $settingsOutput +  "`"Password`":`"$pwd`", " 
+$settingsOutput = $settingsOutput +  "`"ConnectTimeout`":30, "
+$settingsOutput = $settingsOutput +  "`"VersionKey`":`"defaultSql2016`" }]}"
+
+$settingsPath = $env:AGENT_WORKFOLDER + "connectionsettings.json";
+Set-Content -Path $settingsPath -Value $settingsOutput -Force
+
+Write-Host "Saving settings to $settingsPath"
+Write-Host $settingsOutput 
+
+Write-Host "##vso[task.setvariable variable=SettingsFileName;]"$settingsPath